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Cadillac
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Discussion Starter #1
Will an air filter really help that much with gas mileage?? I am getting 12.5 mpg and really don't like that fact. Any help???
 

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2012 Escalade, 2014 SRX
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No you will not get any better mileage with an air filter unless yours is real dirty, they will add performance but usually not much if any fuel mileage, of course this has something to do with abusing your new found performance
 
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